{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45846",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.078Z",
        "datePublished": "2026-05-27T09:24:52.122Z",
        "dateUpdated": "2026-06-14T17:46:30.495Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:46:30.495Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst()\n\nbareudp_fill_metadata_dst() passes bareudp->sock to\nudp_tunnel6_dst_lookup() in the IPv6 path without a NULL check.\nThe socket is only created in bareudp_open() and NULLed in\nbareudp_stop(), so calling this function while the device is down\ntriggers a NULL dereference via sock->sk.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000018\n RIP: 0010:udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:160)\n Call Trace:\n  <TASK>\n  bareudp_fill_metadata_dst (drivers/net/bareudp.c:532)\n  do_execute_actions (net/openvswitch/actions.c:901)\n  ovs_execute_actions (net/openvswitch/actions.c:1589)\n  ovs_packet_cmd_execute (net/openvswitch/datapath.c:700)\n  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)\n  genl_rcv_msg (net/netlink/genetlink.c:1209)\n  netlink_rcv_skb (net/netlink/af_netlink.c:2550)\n  </TASK>\n\nAdd a NULL check returning -ESHUTDOWN, consistent with the xmit paths\nin the same driver."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/bareudp.c"
                    ],
                    "versions": [
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "31e010a106ff6cd8ccac4bfee547fd3fa1015574",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "55193df8d6d33318435f19572bf5ea47a22eee28",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "51eef9c072aa3405a6823a96ae666d38a3b48750",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "a0f4e4e8e0f5e24ddd83e3d1221732621cf34636",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "35a115a204be08f97450b0389413e218268ef4a2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "74a02921c48fcd35a7881956c9e5c52b86595f5d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "638905520fc4fae6a80991563f264131545ba3df",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "571912c69f0ed731bd1e071ade9dc7ca4aa52065",
                            "lessThan": "aa6c6d9ee064aabfede4402fd1283424e649ca19",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/bareudp.c"
                    ],
                    "versions": [
                        {
                            "version": "5.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.141",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.91",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.33",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/31e010a106ff6cd8ccac4bfee547fd3fa1015574"
                },
                {
                    "url": "https://git.kernel.org/stable/c/55193df8d6d33318435f19572bf5ea47a22eee28"
                },
                {
                    "url": "https://git.kernel.org/stable/c/51eef9c072aa3405a6823a96ae666d38a3b48750"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a0f4e4e8e0f5e24ddd83e3d1221732621cf34636"
                },
                {
                    "url": "https://git.kernel.org/stable/c/35a115a204be08f97450b0389413e218268ef4a2"
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                {
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                },
                {
                    "url": "https://git.kernel.org/stable/c/638905520fc4fae6a80991563f264131545ba3df"
                },
                {
                    "url": "https://git.kernel.org/stable/c/aa6c6d9ee064aabfede4402fd1283424e649ca19"
                }
            ],
            "title": "bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst()",
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}